[parsec-users] Fluid animate

Jim Dempsey jim at quickthreadprogramming.com
Sat Mar 6 20:31:26 EST 2010


Chris,

I made improvements to fluidanimate. I fixed some of the colorizing for the
visualization and I have the QuickThread version running. The in_500K really
looks neat (could have better color scheme). I am running some benchmarks
tests now. Currently compiled as 32-bit and running on Windows XP x64. The
QuickThread implementation is faster. As least on the in_35K runs. The
in_500K the difference is not as large (due to fewer locks/particle
permutation).
 
Now if I only can have access to a 16 core or more system I could realy give
it a good test.


Intel Q6600 4 Core Win XP x64 (programs compiled and run as x32)
Best of 3 runs

Fluid animate in_35K 500 iterations

              threads  run 1    run 2    run 3    best     ratio
Serial           1     46.050   45.958   46.044   45.958   1.000

Pthreads-w32     4     15.931   16.064   15.946   15.931   2.885
TBB              4     17.240   17.268   17.207   17.207   2.671
QuickThread      4     13.862   13.291   13.293   13.291   3.458

Pthreads-w32     2     26.974   27.274   27.268   26.974   1.704
TBB              2     29.051   28.929   28.950   28.929   1.589
QuickThread      2     24.478   24.501   24.949   24.478   1.878

Pthreads-w32     1     49.356   49.246   49.303   49.246   0.933
TBB              1     56.436   56.593   56.516   56.436   0.814
QuickThread      1     48.351   48.363   48.147   48.147   0.955

Fluid animate in_500K 50 iterations

              threads  run 1    run 2    run 3    best     ratio
Serial           1     67.818   67.732   67.732   67.732   1.000

Pthreads-w32     4     23.075   22.752   22.826   22.752   2.977
TBB              4     27.447   27.693   27.454   27.447   2.468
QuickThread      4     21.580   21.750   21.965   21.580   3.139
                 
Pthreads-w32     2     39.274   39.207   39.208   39.207   1.728
TBB              2     45.737   45.686   45.929   45.686   1.483
QuickThread      2     37.460   37.012   37.034   37.012   1.830
                 
Pthreads-w32     1     72.950   72.818   72.934   72.818   0.930
TBB              1     84.302   84.292   84.345   84.292   0.804
QuickThread      1     69.970   69.904   69.824   69.824   0.970 

 



Above is Serial near frame 305



Above is Pthreads-w32 near frame 305



Above is QuickThread near frame 305

All thread are similar yet different. (ignore the highlighting differences,
look at the contours)

 

Jim

 

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